body {
    text-align:center;
}
.header {
    position:fixed;
    left:0;
    top:0;
    width:80%;
    height:60px;
    line-height:60px;
    /*background:#000;*/
    box-shadow: 0 0 5px 2PX #909399;
    padding:0 10%;
    z-index:10000;
}


.header h1 {
    color:#409EFF;
    font-size:20px;
    font-weight:600;
    text-align:center;
}
.install-box {
    margin:100px auto 0;
    background:#fff;
    border-radius:10px;
    padding:20px;
    overflow:hidden;
    box-shadow:5px 5px 15px #909399;
    display:inline-block;
    width:680px;
    min-height:500px;
}
.protocol {
    text-align:left;
    height:400px;
    overflow-y:auto;
    padding:10px;
    color:#333;
}
.protocol h2 {
    text-align:center;
    font-size:16px;
    color:#000;
}
.step-btns {
    padding:20px 0 10px 0;
}
.copyright {
    padding:25px 0;
}
.copyright,.copyright a {
    color:#ccc;
}
.layui-elem-quote{
    border-left:5px solid #409EFF;
}

.btn{
    background-color:#409EFF;
    color:#fff
}